Home / 36,331.67-50,137.26-20,418.81

Finding the Fourth Proportional to 36,331.67, 50,137.26 and 20,418.81

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Solution

The fourth proportional to 36,331.67, 50,137.26 and 20,418.81 is: 28,177.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,331.67 : 50,137.26 = 20,418.81 : x
  2. Step 2: Convert to fraction form
    36,331.67/50,137.26 = 20,418.81/x
  3. Step 3: Cross multiply
    36,331.67x = 50,137.26 × 20,418.81
  4. Step 4: Simplify right side
    36,331.67x = 1,023,743,185.86
  5. Step 5: Solve for x
    x = 1,023,743,185.86/36,331.67
  6. Step 6: Final answer
    x = 28,177.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.